Alternate wiring for Kicker sub with Bose system. (DO THIS)

[Aircraft800]

3 hours ago, The_DJH said:

Great post, I'll swap mine over from yellow and yellow/black and see how it is.  Do i need to change the fuse or anything?

I didn't change any fuse, I haven't seen any issues.

[Mooriartii]

I have a 2026 LT Trail Boss with Bose. I am very confused trying to install the GM/Kicker under seat subwoofer kit.  The directions want you to tap the yellow/yellow black wire for the front speaker for high level inputs.  I do not want to follow those as I want to grab the tap at the Bose amplifier since I don't want to mess up the factory wiring.

 

I picked up a T-harness from Soundgoodstereo that plugs into the 8 pin connector at the amp, I believe x1.  This thread started of recommending that.  Now question related to this harness, it has four sub wires.  I assume one set positive and one set negative. The Kicker amp is only looking for one negative and one positive.  Do I just use one set on this harness or do I two positive into one positive and two negative into one positive?

 

Now if I want to use the specified wires in the instructions, is there a T-harness for that?  

 

If I could get both then I could test and see which I like better without tapping.

 

Finally is there a place I can get an updated Bose amp pin out diagram?  This install should not be as hard as I am making it.  Any advice is appreciated.  

 

Oh, I will be using the Kicker bass adjust knob.

[taze]

On 7/1/2026 at 2:01 PM, Mooriartii said:

I have a 2026 LT Trail Boss with Bose. I am very confused trying to install the GM/Kicker under seat subwoofer kit.  The directions want you to tap the yellow/yellow black wire for the front speaker for high level inputs.  I do not want to follow those as I want to grab the tap at the Bose amplifier since I don't want to mess up the factory wiring.

 

I picked up a T-harness from Soundgoodstereo that plugs into the 8 pin connector at the amp, I believe x1.  This thread started of recommending that.  Now question related to this harness, it has four sub wires.  I assume one set positive and one set negative. The Kicker amp is only looking for one negative and one positive.  Do I just use one set on this harness or do I two positive into one positive and two negative into one positive?

 

Now if I want to use the specified wires in the instructions, is there a T-harness for that?  

 

If I could get both then I could test and see which I like better without tapping.

 

Finally is there a place I can get an updated Bose amp pin out diagram?  This install should not be as hard as I am making it.  Any advice is appreciated.  

 

Oh, I will be using the Kicker bass adjust knob.

 

Use one set of positive and negative into the Kicker. 

 

This should work for the other amp plugs and has the pinouts for you. A little overkill to get the what you're looking for, but could be worse.

 

https://soundsgoodstereo.com/products/pac-aph-gm02-speaker-connection-harness?srsltid=AfmBOoqQWjVsP3WLybAeokKKOHra_E-7RZI_mQSND2dzOqgFDo2xs6Q9